Please use this identifier to cite or link to this item: http://dspace.utpl.edu.ec/handle/123456789/19286
Title: Atractiellomycetes belonging to the rust lineage (Pucciniomycotina) form mycorrhizae with terrestrial and epiphytic neotropical orchids
Authors: Bauer, R.
Herrera Vargas, P.
Haug, I.
Cruz Sarmiento, D.
Garnica, S.
Suarez Chacon, J.
Keywords: atractiellales
helicogloea
neotropical mountain rainforest
orchid mycorrhiza
pucciniomycotina
simple
septate basidiomycota
metadata.dc.date.available: 2017-06-16T22:03:17Z
Publisher: Proceedings of the Royal Society B: Biological Sciences
Abstract: Distinctive groups of fungi are involved in the diverse mycorrhizal associations of land plants. All previously known mycorrhiza-forming Basidiomycota associated with trees, ericads, liverworts or orchids are hosted in Agaricomycetes, Agaricomycotina. Here we demonstrate for the first time that Atractiellomycetes, members of the rust lineage (Pucciniomycotina), are mycobionts of orchids. The mycobionts of 103 terrestrial and epiphytic orchid individuals, sampled in the tropical mountain rainforest of Southern Ecuador, were identified by sequencing the whole ITS1-5.8S-ITS2 region and part of 28S rDNA. Mycorrhizae of 13 orchid individuals were investigated by transmission electron microscopy. Simple septal pores and symplechosomes in the hyphal coils of mycorrhizae from four orchid individuals indicated members of Atractiellomycetes. Molecular phytogeny of sequences from mycobionts of 32 orchid individuals out of 103 samples confirmed Atractiellomycetes and the placement in Pucciniomycotina, previously known to comprise only parasitic and saprophytic fungi. Thus, our finding reveals these fungi, frequently associated to neotropical orchids, as the most basal living basidiomycetes involved in mycorrhizal associations of land plants. © 2009 The Royal Society.
metadata.dc.identifier.other: http://dx.doi.org/10.1098/rspb.2009.1884
URI: http://dspace.utpl.edu.ec/handle/123456789/19286
ISBN: 9628452
Other Identifiers: http://dx.doi.org/10.1098/rspb.2009.1884
Other Identifiers: http://dx.doi.org/10.1098/rspb.2009.1884
metadata.dc.language: Inglés
metadata.dc.type: Article
Appears in Collections:Artículos de revistas Científicas

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